What impulse results if the force acting on an object is described by the force-time graph shown?

(Points : 3)
0.50 kgm/s

0.60 kgm/s

1.3 kgm/s

2.1 kgm/s

Question

What impulse results if the force acting on an object is described by the force-time graph shown?


 (Points : 3)  
       0.50 kgm/s

        0.60 kgm/s

        1.3 kgm/s

        2.1 kgm/s

anonymous · Answer

Which of the following is the law of conservation of momentum?
 (Points : 3)  
       The impulse acting on any object is the change in momentum that it causes.

        When two objects interact within a closed system, neither one changes its momentum.

        In the absence of any external force, the total momentum of a system stays the same.

        The acceleration of any object is equal to the net force acting on it divided by its mass.

surry99 · Answer

you will need to sketch the graph or post a photo of it

anonymous · Answer

and i got it if you wanna check the answer ok

anonymous · Answer

attachment

anonymous · Answer

I got a

surry99 · Answer

I am getting a different answer. How did you get .50kgm/s?

anonymous · Answer

Well i divide the force by the time

surry99 · Answer

Impulse = Force * change in time

anonymous · Answer

Okay so what would i do to get the correct answer? what is it?

surry99 · Answer

You would be multiplying force x change in time ...not dividing them

anonymous · Answer

so what is it?

surry99 · Answer

What is the force indicated by the graph? and how long does it act for?

anonymous · Answer

8.0?

surry99 · Answer

It is the same as the area under the curve...

anonymous · Answer

what im lost

surry99 · Answer

ok...the graph is almost a rectangle agreed?

anonymous · Answer

yes

surry99 · Answer

ok...what is the height in Newton?
and what is the width in seconds?
you are calculating the area just like you would fro any rectangle

anonymous · Answer

3 & 0.7?

surry99 · Answer

I think it is about 2.5 Newtons high and
(.7 -.2 ) seconds wide
So the area is....

anonymous · Answer

1.55?

anonymous · Answer

help  im sorry

anonymous · Answer

2.1?

surry99 · Answer

no problem...height x width = 2.5 x .5 = 1.25...the closest answer is 1.3

anonymous · Answer

Ugh thats was hard next ?

anonymous · Answer

Which of the following is the law of conservation of momentum?
 (Points : 3)  
       The impulse acting on any object is the change in momentum that it causes.

        When two objects interact within a closed system, neither one changes its momentum.

        In the absence of any external force, the total momentum of a system stays the same.

        The acceleration of any object is equal to the net force acting on it divided by its mass.

surry99 · Answer

If you do a search on conservation of linear momentum, you should be able to find the answer

surry99 · Answer

Gotta run...sorry.

anonymous · Answer

okay when will you be back?

anonymous · Answer

Which of these leads to the conclusion that linear momentum is conserved?